Proper vertical alignment between containers

Check the Grid block's horizontal gap, if you don't need it, set it to 0 for mobile.

None of the grids inside the containers actually have any horizontal gap set right now: https://ibb.co/swdhTwV

If it's not the horizontal gap, then check the container's padding settings.

It will inherit the setting from the desktop/tablet.

Hi

Okay, but I had to play around with the padding settings. Fernando's advice to me was "Try adding Padding to the Container Block within the Grid Block. https://share.getcloudapp.com/mXux4Zzk 🙂"

So I played around with it to get a central alignment for desktop, but mobile seems way out of place now.

With GB, you can set different paddings for desktop/tablet/mobile.

Even if you have 50px padding set for desktop, you can set it to 0 for mobile.
https://docs.generateblocks.com/article/responsive-controls/